Gold-amalgamator



- H10. BROWN; GOLD AMALGAMATOR.

APPLICATION FILED JAN. 2!, I920.

1,369,388. Patented Feb. 22; 1921.

mm nlfoz Henry C. Brown.

' Chrome HENRY C. BROWhT. OF FORTUNA, CALIFORNIA. V

GOLD-AMALGAMATGR.

, Specification of Letters Patent.

Patented Feb. 22, 1921.

Application flled J'anuary 21, 1920. Serial No; 353,050; 7

To all tohom it may concern:

Be it' known that I, HENRY C. BnowN, a citizen of the United States, residing at Fortuna, in the county of Humboldt and State of California, have invented certain new and useful Improvements in Gold- Amalgamators, of which the following is a specification.

y invention is an improved gold amalgamating machine. 1

The object of my invention is to provide a machine to amalgamate'gold which is so fine that it will not settle on the ordinary gravity plate and to clean greasy gold and brighten it so that that it will amalgamate. Referring to the annexed drawing which forms a part of this specification:

Figure 1 is a vertical longitudinal section of my invention.

Fig. 2 is a face view of one of the agitators.

The parts of my invention are designated in the drawing by the same reference char acters designating corresponding parts in the specification.

In the drawing 1 indicates a cleaner and 2 an amalgamator. The cleaner 1 includes a cylinder 3, a shaft 4 extending through the heads 5 and 6 of said cylinder, and journaled in bearings 7 and 8, agitators 9, 10, 11 and 12 secured on said shaft within said cylinder and a pulley 13 secured on said shaft through which power is applied to rotate said shaft and agitators. Packing boxes 14 and 15 are arranged in the heads 5 and 6. Each of the agitators 9, 10, 11 and 12 is of disk formation slightly smaller in diameter than the interior of the cylinder 3 and is provided with two diametrically 0pposi-te slots 16 which extend through the periphery thereof. On the right or receiving I side of each of said agitators are a pair of flanges 17 each of which extends eccentrically of the center of the agitator from a point near the periphery thereof and near one side of a slot 16 to the periphery of the agitator and to the same side of the other 7 slot 16. In the upper wall at the receiving end of the cylinder 3 is an inlet 20 withwhich the lower end of a hopper 21 communicates, the hopper being secured to the cylinder. In the lower wall of said cylinder at the discharge end thereof is an outlet 22 which communicates with a discharge tube 23 secured at its receiving end to said cylinder;

" The amalgamator 2 isconical shaped ineluding a head 24 and a conical shell 25, Y

said head being formed with an in-turned peripheral flange 26 which fits within the smaller end of said shell and is riveted thereto. The head 24 is provided with a central opening 27 and a tubular journal 28 is secured at one end to the outside of said head in communication with said opening and coaxially with the head and shell 25. The

journal 28 is journaled horizontally in bearlugs 29 and 30 in standards 31 and 32. The tube 23 curves downwardly from the outlet 23 into a horizontal direction into the journal;

28. A pulley 33 is secured on the shaft 4 between the bearing 8 and the cylinder head 6 and a pulley 34 of greater diameter than pulley 33 is secured on the amalgamator journal 28, over which pulleys extends a belt 35 whereby the amalgamator is rotated from the shaft 4. A distribution plate 36 is 10- catedin the amalgamator a short distance in from the head 24, which plate is'of concave-convex formation and has an outer annular flange 37 ,.the concaved side of said plate facing the head 24 and the inlet 27 Bolts 38 extend through the head 24 and through the flange 37 and'nuts 39 screw on the inner ends of said bolts against said flange whereby the distribution plate is maintained in position. The amalgamator shell 25 is lined with a copper lining 40. A sluice box 50 is located below the outer end of the amalgamator2.

a The operation of my invention is as follows:

A small amount of mercury is thrown into the amalgamator which spreads out in a thin film over the inner surface of the copper lining 40. An emulsion of water and sand containing gold is fed through the hopper 21 into the cleaner 1, in which the agitators 9 to 12 inclusive set up currents and counter currents and cause the sand and water to cut and wash any gold contained in the sand fast enough tof forcethe emulsion, by cenand the distributer plate flange 37 into the main chamber of 'the'amalgamaton. The

.' distributer plate 36 gives the emulsion a rotary' 'moti'on and distributes the emulsion 7 evenly around in a circle through the slot between the distributer flange and the'amal gamatorhead flange over the surface of the amalgamatorchambenwhicli has a cleaning effect on the'gold and eliminates the wear-on the amalgamator; "Theamalgamator being funnel shaped. carries the material along and discharges it into the sluice box 50 where the gold is collected. 7 The, amalgam-atolholds mercury and amalgam just as well as gravity plates, butonce the gold catches, on

the lining 40 it is completely amalgamated which is not the case in any other method Having described my invention, I claim:

In an amalgamating machine, a cylinder, a shaft extending axially through said cyl I inder, disk agitators on said shaft provided to the same side of the other slot, said cylinder providedwith an inlet and an outlet,

an amalgamator, and afpipe leading fromsaid outlet to said ani'al amator.

In testimony whereof affixm si nature.

' HENRY C, R W N. 

